syzbot


WARNING in kunmap_local_indexed

Status: upstream: reported C repro on 2024/02/26 13:19
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+691cb37358791bebebe6@syzkaller.appspotmail.com
First crash: 148d, last: 9h40m
Discussions (5)
Title Replies (including bot) Last reply
[syzbot] Monthly mm report (Jul 2024) 0 (1) 2024/07/01 10:28
[syzbot] Monthly mm report (May 2024) 0 (1) 2024/05/31 06:48
[syzbot] Monthly mm report (Apr 2024) 0 (1) 2024/04/29 12:35
[syzbot] Monthly mm report (Mar 2024) 0 (1) 2024/03/19 21:40
[syzbot] [mm?] WARNING in kunmap_local_indexed 0 (1) 2024/02/26 13:19

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3005 at mm/highmem.c:611 kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 PID: 3005 Comm: syz-executor247 Not tainted 6.10.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<818d4178>] (dump_backtrace) from [<818d4274>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622d44 r5:00000000 r4:81fe12b8
[<818d425c>] (show_stack) from [<818f189c>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818d425c>] (show_stack) from [<818f189c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818f1848>] (dump_stack_lvl) from [<818f18dc>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285fd18
[<818f18c4>] (dump_stack) from [<818d4d1c>] (panic+0x120/0x358 kernel/panic.c:347)
[<818d4bfc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818d4bfc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fc9f28 r0:81fd1b78
 r7:80481370
[<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180 kernel/panic.c:693)
[<80243f44>] (__warn) from [<8024423c>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:718)
 r8:00000009 r7:81ff8910 r6:df981d14 r5:840e4800 r4:00000000
[<802440c8>] (warn_slowpath_fmt) from [<80481370>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611)
 r10:ffedc0a8 r9:84139b00 r8:20508000 r7:fffffffe r6:00000003 r5:840e4800
 r4:ffedc000
[<80481164>] (kunmap_local_indexed) from [<804f2bf8>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<80481164>] (kunmap_local_indexed) from [<804f2bf8>] (move_pages_pte mm/userfaultfd.c:1332 [inline])
[<80481164>] (kunmap_local_indexed) from [<804f2bf8>] (move_pages+0x7e8/0x14a0 mm/userfaultfd.c:1733)
 r7:fffffffe r6:00000000 r5:84633810 r4:ffeda840
[<804f2410>] (move_pages) from [<8056b0f8>] (userfaultfd_move fs/userfaultfd.c:2016 [inline])
[<804f2410>] (move_pages) from [<8056b0f8>] (userfaultfd_ioctl+0x1278/0x2314 fs/userfaultfd.c:2134)
 r10:20c16000 r9:df981e98 r8:20000080 r7:84139b00 r6:00000001 r5:00000000
 r4:844e1000
[<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (do_vfs_ioctl fs/ioctl.c:861 [inline])
[<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (__do_sys_ioctl fs/ioctl.c:905 [inline])
[<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893)
 r10:840e4800 r9:00000003 r8:844d2c00 r7:20000080 r6:844d2c00 r5:00000000
 r4:c028aa05
[<8051a568>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdf981fa8 to 0xdf981ff0)
1fa0:                   ffffffff 00000000 00000003 c028aa05 20000080 0000011a
1fc0: ffffffff 00000000 0008e058 00000036 000f4240 00000000 00000001 00003a97
1fe0: 7ea81c70 7ea81c60 00010720 0002e880
 r10:00000036 r9:840e4800 r8:8020029c r7:00000036 r6:0008e058 r5:00000000
 r4:ffffffff
Rebooting in 86400 seconds..

Crashes (1357):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/05 08:20 upstream 32f88d65f01b e1e2c66e .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/02/26 07:15 upstream 70ff1fe626a1 8d446f15 .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/19 09:08 upstream 68b59730459e ee4e11c8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/19 08:03 upstream 68b59730459e ee4e11c8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/18 10:09 upstream e2f710f97f35 0f902625 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/18 08:14 upstream e2f710f97f35 0f902625 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/17 19:31 upstream 51835949dda3 0e62b432 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/17 05:25 upstream 408323581b72 215bec2d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/16 15:42 upstream d67978318827 b66b37bd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/16 15:36 upstream d67978318827 b66b37bd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/15 14:30 upstream 0c3836482481 252f67bd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/14 20:48 upstream 4d145e3f830b eaeb5c15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/14 12:02 upstream 4d145e3f830b eaeb5c15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/13 10:08 upstream 975f3b6da180 eaeb5c15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/13 09:31 upstream 975f3b6da180 eaeb5c15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/12 22:11 upstream 43db1e03c086 eaeb5c15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/12 07:20 upstream 8a18fda0febb eaeb5c15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/11 21:02 upstream 9d9a2f29aefd 6ca1eb5a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/11 19:52 upstream 9d9a2f29aefd 6ca1eb5a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/11 08:09 upstream a19ea421490d c699c2eb .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/11 08:08 upstream a19ea421490d c699c2eb .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/11 07:04 upstream a19ea421490d c699c2eb .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/10 07:57 upstream 34afb82a3c67 bc144f9a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/10 06:00 upstream 34afb82a3c67 bc144f9a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/08 17:35 upstream 256abd8e550c 7ca8bbea .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/08 17:34 upstream 256abd8e550c 7ca8bbea .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/08 16:32 upstream 256abd8e550c 7ca8bbea .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/07 13:01 upstream 22f902dfc51e bc4ebbb5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/07 10:28 upstream 22f902dfc51e bc4ebbb5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/07 10:27 upstream 22f902dfc51e bc4ebbb5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/06 20:09 upstream 1dd28064d416 bc4ebbb5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/06 07:04 upstream d270dd21bee0 bc4ebbb5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/05 19:32 upstream 661e504db04c 76e0d5e0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/05 18:31 upstream 661e504db04c 76e0d5e0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/05 18:30 upstream 661e504db04c 76e0d5e0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/05 07:56 upstream 661e504db04c 7d7fe880 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/05 06:32 upstream 661e504db04c 7d7fe880 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/05 06:29 upstream 661e504db04c 7d7fe880 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/04 18:33 upstream 795c58e4c7fc dc6bbff0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/04 07:43 upstream 8a9c6c40432e 3f2748a3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/04 05:47 upstream 8a9c6c40432e 3f2748a3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/04 05:46 upstream 8a9c6c40432e 3f2748a3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/03 18:47 upstream e9d22f7a6655 ffe8393d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/03 17:29 upstream e9d22f7a6655 ffe8393d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/03 04:32 upstream 734610514cb0 1ecfa2d8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/07/02 19:37 upstream 1dfe225e9af5 dc6047a3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
2024/02/22 13:12 upstream 39133352cbed 345111b5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in kunmap_local_indexed
* Struck through repros no longer work on HEAD.